My alchemist (preservationist) is only level 4. At this point, there doesn't seem to be any reason to take the feat, but looking at SNA spells vs. SM at IV and beyond, the feat looks pretty good. Thoughts?
Good for variety, and the SM spells tend to be a bit better. I'd pick it up around when lantern archons become a thing.
Agreed on Lantern Archons, for sure. They don't do a lot of damage but they do bypass ALL damage resistance. On a positive side-note, they don't come on line for Alchemists with Planar Preservationist until they get 1d3 of them.
Gotta catch em' all, so planar preservationist is a no-brainer.